java -jar host.jar joingroup localhost 3000 localhost 4000
java -jar host.jar joingroup localhost 3000 localhost 5000
java -jar host.jar joingroup localhost 3000 localhost 6000
java -jar host.jar joingroup localhost 3000 localhost 7000

java -jar host.jar joingroup localhost 4000 localhost 3000
java -jar host.jar joingroup localhost 4000 localhost 5000
java -jar host.jar joingroup localhost 4000 localhost 7000

java -jar host.jar joingroup localhost 5000 localhost 3000
java -jar host.jar joingroup localhost 5000 localhost 6000
java -jar host.jar joingroup localhost 5000 localhost 7000

java -jar host.jar joingroup localhost 6000 localhost 4000
java -jar host.jar joingroup localhost 6000 localhost 3000

java -jar host.jar joingroup localhost 7000 localhost 4000
java -jar host.jar joingroup localhost 7000 localhost 3000
java -jar host.jar joingroup localhost 7000 localhost 5000
